Table 1 Participant characteristics by group at the 10-month assessment, final samples (Mean/SD)

From: Enhanced pupillary light reflex in infancy is associated with autism diagnosis in toddlerhood

Measure

HR-ASD (n = 29, 7 girls)

HR-no-ASD (n = 118, 62 girls)

TD (n = 40, 20 girls)

GLM with group as fixed factor

Age (days)

288.31/31.65

283.01/26.80

294.05/25.40

F(2, 184) = 2.532 P = 0.082

MSEL TOTa

101.41/15.50

106.58/15.02

108.35/14.16

F(2, 184) = 1.947 P = 0.146

SESb

3.21/1.35

3.79/1.21 (n = 117)

4.38/1.00

F(2, 183) = 8.219 P < 0.001

  1. a Mullen Scales of Early Learning total score
  2. b Socio-economic status based on parental education on a five level rank scale. While there is a significant difference between groups, this difference does not influence our main results: adding SES as a factor in the analysis did not change the pattern of results
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